Researches on the Relation Ship between Raman Scattering Enhancement Factors and Concentration of Solution

Abstract:

The researches of surface enhanced Raman scattering spectrum enhancement factor are based on low concentration of the solution, while the selection of solution concentration on the enhancement factor is ignored. In this paper, the substrate of nano-pillar forest structure whose density is controllable was fabricated. Using the high ability of enhancement, Raman scattering enhancement under different concentration (10g / L ~ 10-5 g / L) was tested and researched .The results indicate that the enhancement factor has close relationship with concentration, that is to say the enhancement factor will arise with the concentration decreasing. The main element, which affects the variation of the enhancement factor, is due to the change of efficiency polarization of CV molecule adsorbed on the Au nano- pillar.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 1213-1216
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.1213
• Online since: October 2010
• Authors: Yong Feng Liang, Chen Yang Xue, Hai Yang Mao, Wen Gang Wu
• Keywords: Characteristic Peak, Raman Scattering Enhancement, Violet Solution

References

[1] Fleisehmannm, Headra PJ, Mcquillan A J. Chemical Physics letters, 1974, 26(2): 163-166.

[2] Jeanmaire D L, Van Duyne. R P. Journal of Electro analytical Chemistry, 1977, 84(1): 1-20.

[3] S Nie, and SR Emory, Science, 1997, 275, p.1102–1106.

[4] S. Kostrewa, W. Hill *, D. Klockow Silver films on diamond particles as substrates for surface-enhanced Raman scattering (1998).

DOI: 10.1016/s0925-4005(98)00230-5

[5] Tian Z Q , Ren B, Wu D Y.J. Phys. chem.B. 2002, 106: 9463-9483.

[6] E. Nalbant Esenturk, A. R. Hight Walker Surface-enhanced Raman scattering spectroscopy via gold nanostars J. Raman Spectrosc. (2008).

DOI: 10.1002/jrs.2084

[7] Xiaofeng ZHAI, Cheng MU. Spectroscopy and Spectral Analysis, Vol. 28, No. 10: 2329-2332 , 2008 , In China.